Planer gauge



March 27, 1945 L. H. DI ERKING PLANER GAUGE Fil'ed Dec. 4, 1943 III llL

I Patented Mar. 1945 PLAN-Ea GAUGE Lester R. Dierking, Detroit, Mich assignor to EdwardH; Kramer, Detroit, Mich. I ApplicationDecember 4, 19.43, SerialNo. l2,981-

7" Claims.

This.- inventionrelates to improvements in planer gauges, and. aims. among other. things, to provide a gauge including; means for accurately adjusting a blocklongit-udinally along'an' inclined face of a body so that exact setting of the. block atany desired height may be readily obtained.

Another object of theinvention is to provide -Having thus briefly stated some of. the objects.

and, advantages of the invention 1. will nowproceed tov describe. a preferre'd: embodiment thereof: with the aid of. the accompanying; drawing, in

which: Figure 1 illustrates a side view'thereonand Figure-2 is a planview'.

Figure 3 is a section. on the line 3-45 of Fi ure 2;

FlguresA. and 5' are sections on the. line 4-:1* and 5--5 respectively of Figure 3-..

Figure 6 is an end view on the line 6+6. of

Figure l. I

Referring to the drawing, I designatesav body having an inclined upper side 2 which is: longitudinally slotted at 3 intermediately of it endsto receive a feed screw l the axis of which is ParalI- lel with the inclined side-'2', and formed in and extending from the lower. end of the inclined side is a relatively shallow Ti-slot 3a. The feed: screw 4 is suitably supported for rotation. and has va worm wheel -5 thereon at one. extremity. In the present instance one end of the feed screwis rotatably supportedin a bearing 6 formed in the body I and its opposite end is axially'countersunk at l to receive one extremity of a set screw 8 which is threaded through one end of the body. Extending transversely beneath the screw 4 and in engagement with the worm wheel 5 is a worm In which in the present instance is formed on a spindle II which is supported in aligned bearings 12 formed in opposite sides of the body I. Fixed on one extremity of the spindle H i -a sir cular dial l4 having radial indicating mark l5 thereon to register with an index mark It on the adjacent side of the body.

. Mounted. for sliding movement. alon the inclined. upper. side 2 of the; body isa block H. havingstepped; horizontal. bearing faces l8 there 0X12. Formed in: the underside of: the block; is an:

. upwardly inclinedchamber' l-l'extendingat. right,

angles to the aXis of the feedscrew't. Mounted for axiallmovement in; thechamber I9 is a sleeve 20 closed at. its upper extremityas by a screw 20a and terminating at its lower: end in a flange 24-: the'upper face: of which is adapted to engage the T-slot 3a. flange 2! are two spaced; parallel guides 22 extendingv at right angle to the axis of the feed screw 4 and. having vertically elongated. slots- 23'formed therethroug'h through which the said screw 4 extends. Formed in the lower portion of the bore of the guide slots 23 are partial threads 24' to-engagethe thread. of the feedscrew-t. Axiallyi movable through an opening in the flange l-l is a; plunger 25 which is coaxial with thesleeve 20 and terminates at its upper end in an enlargedhead 26v which is a sliding fit in the said sleeve; Integral With thelower extremity of the plunger 25.- beneath the flange 21 is a slide 21' which is slidable in contact withthe-adjacent faces of the uides. 22. Formed through the sl de is a vertically elongated aperture through which. the feed screw; passes. 28 denotes a helical spring arranged around the plunger 25 which extends be tweenthe top of the flange 2! and the plunger head 26 tending; to force the latter upward in the sleeve 2i) and raise the: slide 21 so that the underside'of' the slot formed therethrough, which. is smooth, bears; against the underside of the feed screw 4. Moreover'as the spring 28 bears onthe top of the flange 2| it; tends to force the latter. downward out. of engagement with the IT-slot 3a and also to force the guides. 22 downward. so that the partial threads 24 remain disengaged from the feedscrew 4.

Formed through the block I l is a threaded apertur'e29; which receives a screw 30; This screw extends through. a slot 3i formed in one side of thesleeve. 2B and upon its inner extremityv is a cam 32 which contacts the underside of the screw 20a and raises the sleeve 20 against the downward pressure of the spring 28 acting upon the top of the flange 2 I.

When the screw 36 is so turned that the sleeve 20 is raised to its top position the underside of [the flange 2| bears against the T-slot 3a.and

holdsthe block I! immovable on the body i.

-When the screw is turned slightly to perm-it a little downward movement of the sleeve 20 the flange 2| is no longer in such frictional engage- Projecting; downwardly from the ment with the T-slot as to prohibit movement of the block though the partial threads 24 are still in engagement with feed screw 4 so that rotation of the latter causes movement of the block along the inclined side 2. When the cam 32 is turned to its bottom position the spring 28 depresses the sleeve 20 and its guide 22 so that the partial threads 24 are disengaged from the feed screw 4. Then the block I! may be freely moved longitudinally of the body for rapid, approximate setting.

From the foregoing it will be readily seen that I have devised a simple and effective plunger gauge wherein the block I'I may be accurately adjusted through rotation of the feed screw 4, and by adjustment of a single screw 30 the block may be either locked in position, set .for movement through rotation of the feed screw, or permitted independent movement along the inclined side 2 of thebody.

While in the foregoing the preferred embodiment of the invention has been described and shown, it is understood that alterations and modifications may be made thereto provided they fall within the scope of the appended claims.

What I claim is:

1. A planer gauge including a body having an inclined side and a T-slot formed therein, a feed screw mounted for rotation in the body having its axis parallel with said inclined side, means for rotating the screw, a block mounted for movement along the inclined sidehaving at least one horizontal face thereon, said block having a 'chamber formed in its underside, a member mounted for axial movement in said chamber having downwardly projecting guides, the latter having artial threads formed thereon to engage the feed screw, a flange on the member for engaging the T-slot, means for adjusting the position of the member in the chamber whereby the partial threads may be held in engagement with the feed screw to move the member or block by rotation of the screw, or whereby the flange is held in binding engagement with the T-slot to retain the block immovable and the partial threads are in binding engagement with said feed screw.

2. A planer gauge including a body having an inclined side, a feed screw mounted for rotation in the body having its axis parallel with said inclined side, means for turning the screw, a block mounted for movement along the inclined side having at least one horizontal face thereon, said block having a chamber formed in its underside, a sleeve mounted for axial movement therein, downwardly projecting guides on said sleeve having partial threads formed thereon, a plunger movable in the sleeve, means limiting the upward movement of the plunger, a spring around the plunger tending to move the sleeve downwardly whereby the partial threads are disengaged from the feed screw to permit independent movement of the block along the body, and means adapted to move the sleeve against the tension of the spring whereby the partial threads are, brought into engagement with the feed screw.

3. A planer gauge including a body having an inclined side and a T-slot formed therein, a feed screwmounted for. rotation in the body having its axis parallel with the inclined side, means for turning the screw, a block mounted for movement along the inclined side having at least one horizontal face thereon, said block having a chamber formed in its underside, a sleeve mounted for axial movement therein, a flange carried by the sleeve for engaging the T-slot, downwardly projecting guides on the sleeve having elongated slots therethrough on the walls of which partial threads are formed to engage the feed screw, plunger movable in the sleeve,

means limiting the upward movement of the plunger, a spring around the plunger tending to move the sleeve downwardly and disengage the partial threads from the feed screw, and means for moving the sleeve and bringing the partial threads into engagement with the feed screw and for moving the said sleeve farther whereby the flange is brought into engagement with the T-slot.

4. The combination set forth in claim 2 wherein the means for moving the sleeve includes a screw in threaded engagement with ,the block and ex tending through the sleeve, the latter having its upper extremity closed, and a cam on the screw adapted to raise the sleeve against the tension of the spring.

5. The combination set forth in claim 2 wherein a slide integral with the plunger extends downwardly therefrom and is slotted for the passage of the feed screw therethrough, the opposite sides of the slide forming bearing faces for the adjacent sides of the guides.

6. A planer gauge including a body having an inclined side, a feed screw mounted for rotation in the body having its axis parallel with said inclined side, means for rotating the screw, a block mounted for sliding movement along the inclined side having at least one horizontal face thereon, said block having a chamber formed in its underside, a member mounted for axial movement in the chamber having downwardly projecting guides, the latter being apertured to encircle the feed screw and having partial threads formed therein, means for moving said member in said chamber whereby the partial threads may be brought into engagement with said feed screw, and means carried by said member for frictionally engagingsaid body and holding the block immovable thereon when said member is moved to its limit of travel in one direction.

7. The combination set forth in claim 6, including spring means tending to hold said member and guides whereby the partial threads are disengaged from the feed screw and. independent movement of the block along the body is permitted.

LESTER H. DIERKING. 

